Determination of the propagator in QED3 by spectral function
arXiv:hep-th/0610016 · doi:10.1016/j.nuclphysa.2007.03.129
Abstract
To study the infrared behaviour of the propagator, exponentiation of the lowest order spectral function has been known.We show this method is helpful in super renormalizable theory with dimension-full coupling constant.In the 1/N approximation anomalous dimension is independent of ,which plays an important role for confinement and pair condensation.
6 pages Latex,2 figures.introduction is modified.mistakes in equations are corrected.figure captions are corrected